Draft-arm.



Patented Dec. 19, 1916,

0. HOCHBERG.

DRAFT ARM.

APPucmoN man Aus.2,1916.

\%\ f' QN UNrrED STATES PATENT OFFICE.

'man normanno, or: sa'. Leurs,

MISSOURI, .ASSIGNOR T AMERICAN CAB AND FOUN- ,DnY COMPANY, or sr. Louis, mssounra CORPORATION or NEW JERSEY.

.Bizarr-Anm.

Bpecication of Letters Patent.

Patented Dec. 19, 1916.

Applicationled August 2, 1916. Serial No. 112,722.

1 .0' all whom it may concern: 1

Be rit known that I, OsoAn HOCHBERG, re-

i siding atSt. Louis, Missouri, and being a citizen yofthe United States, have invented certain new and useful Improvements in Draft-Arms, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which illustrate the preferred form of the invention, though it isto be understood that the invention is not limited to the exact details of construction shown and described, as it is obvious thatvarous modiieations thereof within the scope of the claims will occur to Vpersons skilled in the art. v

In said drawings: Figure 1 is a plan view of a portion of an underframe of a car equipped with a reinforcing draft arm, the upper portion of the figure illustrating a horizontal sectiontaken substantially on the line 1-1 of, Fig. 2 through the draft plate sill and draft lug; Fig. 2 is a longitudinal vertical sectional view of the end portion of i 7the underframe showing the draft `arm applied; 4l? ig. 3 is a vertical sectional View taken on the line 3 3 of Fig. 2; Fig. 4 is a similar view taken Aon the line 4-4 of Fig. 2; and Fig. 5 is an enlarged View of a portion of the section taken on line 1-1 of Fig. 2, showing the draft lug fitted lwithin the depressed socket of the draft plate.

Whilermost of the rolling stock of railways of the present day is modern, there still remains in service a considerable number of old all wood cars, the condition of which does not ywarrant discarding them, but which donot possess the proper in` herent strength to be' included' intrains made up of the now more heavy cars. Using the old wood cars is a more or less dangerous practice, unless their underframes arel reinforced to withstand the heavy stresses of modernv train` operation.

The present invention relates to a draft arm which may 4 center sills of old cars in such manner that the)T will reinforcethe same and provide a strong metallic structure capable of meeting all thel requirements they,I may be subjectbe applied tothe wooden in which sockets are formed by a novel method of slitting and pressing-such plate, whereby there are portionsbulged 'inwardly away from the body of theldraft plate to provide abutments for the lugs or projections and bearing surfaces of the outerfaces of the draft lugs. In this way the draft lugs over the greater portion of the distance between the follower stops are provided with considerable bearing area in addition to that furnished by that portion of the plate lying between the draft. lug projections and the draft sill. i

Other features of merit will become aparent hereinafter and are to be considered parts of the invention.

VReferring to the drawings, an end portion of an underframe has been shown and and therefore it is unnecessary to describe more than one of the underframe ends.

Referring specifically to the parts, 1 indil cates reinforcing plates disposed on opposite sides of the center line of the underframe, each o which plates comprises an upper portion and a lower portion, the upper portion having an inwardly directed iange 2,4 at its outer end'securely bolted or otherwise fastened to the end sill 3 of the underframe. 'Said upper portion extends from end sill 3 rearwardly to beyond the bolster 4passing over the same. The lower portion asses partially underneath end sill 3, said ower portion extending rearwardly. The lower portion of each plate 1 extends substantially to the forward edge of bolster 4. As seen in Figs. 3 and 4, the upper portion of each reinforcing plate 1 lies against the inner face of the wooden center sill C and is secured vthereto by horizontally disposed bolts 6 arranged longitudinally of'- center sills C, as disclosed in Fi 2. Toward the lower edge of center sills plates 1 are in. clined outwardly and depend a material distance below the inclinations and also the bottoms of the center sills, the center sills being cut away N'to accommodate the offretained in the present draft arm arrange ment, appropriate provision being made for the lugs or projec ions 8 which, in the original car, were embedded in recesses in the composite wood center' and draft sills, as hereinafter more fully set forth.

Associated with reinforcing plates 1 are draft sills 9, here illustrated as having the form of commercially rolled channels. Draft sills 9 have their upper flanges arranged to abut the bottoms' of the wood center' sills C and are secured thereto by bolts 10 passing through the upper draft sill flanges, center sills C and the floor 1l, the heads of bolts 10 being countersunk in said floor. The inner faces of draft sills 9 lie against the outer faces of reinforcing plates 1, except where portions of the latter are bulged inwardly therefrbm, and the lower flanges of draft sills 9 form stiffening members for the bottoms of the reinforcing draft arms. Draft sill channels 9 extend forwardly under end sill 3, and beyond the same, and have a striking plate casting 5 secured to their outer ends. 1n progressing rearwardly, draft sills 9 extend to the rear of the lower portions of plates 1, which lower portions terminate at the forward side of the bolster. The upper rear portions of draft sills 9 and the lower portions of plates 1, which they reinforce, are connected by upper tie plates 12 provided with down-turnecl`fianges 12, rivets 13 passing through these flanges, the lower portions of plates 1, andthe webs of the draft sills 9. The horizontal or body portion of tie plates 12 abut the upper forward 'Ii-ange 14 of the bolster 4. The upper portions of plates 1 are also reinforced by channel or other suitable members 15 secured to said upper portions at a point forwardly of the bolster and extending rearwardly thereof, preferably to the rear ends of the upper portions of plates 1. Another tie plate, which may be in the form of an angle 16, is secured to the bottom flanges 17 of the transversely spaced channels 15, said angle 16 abutting the upper rear bolster flange 18. With this arrangement, bulling and pulling stresses will 'be directly transmitted to the bolster and in such manner as to relieve the securing bolts 19 from the effect of such stresses. 0n account of the described cornbination of the parts of the draft arm, said arm as a whole is more rigidly positioned by reason of the interlocking between the bolster 4 and the tie plates 12 and 16.

The lower portions o the plates 1 are given novel treatment to adapt them to cooperate with the draft lugs 7. At suitable points', embossments 22 are made in said lower portions of plates 1 which embossinents are spaced inwardly from `the webs of draft sills 9. 0n opposite sides of the vertical median line of each embossment,

jections extend.

incisions are made to form slits 20. The metal of each einbosslnent between the cornpanion slits 2() is relient at 21 outwardly to contact with the inner faces of the vertical webs of theI draft sills 9. The vertical extent of the rebent portions 21 is, preferably, nearly equal to the height of the cmbossments 22, as liest shown in Figs. 2 and 3. Draft l1gs 7 are provided with bearing bosses 23 w iich lie against the embossments 22 of plates 1, and centrally of cach draft lug bearing boss 2B is a lug or projection adapted to fit into the space formed by depressing the rebent portions 21 of plates 1. Projections 8, as shown in Fig. 4, are substantially of the same height `as the sockets formed by rebending portions .21, and rivets 24 pass through the projections 8, the metal of the rebent portions 21 that is centrally located of the embossments 22, and the webs of draft sills 9. By reason of the inward extension of bosses 22 of plates 1, the ends of draft lugs 7 are spaced away from the inner faces of Said plates 1 and fillers 25 are interposed between said plates and the ends of draft lugs 7, rivets 26 passing through the draft lugs 7, fillers 25, plates 1 andthe webs of draft sills 9. The lower portions of plates 1 are secured to the draft sills 9 by rivets 26 and 27, which rivets are disposed between and on opposite sides of the emboments 22 of said reinforcing draft plates 1.

From the foregoing, it is evident that buffing and pulling stresses will be transferred from draft lugs 7, through the lugs or projections 8, to the edges of the metal of the embossment which are formed by. the incisions producing slits 20, thence through plates 1 to the tie plates 12 and 16 and to the bolster', thus relieving the wooden center sills C of a great portion of disrupting forces. Shocks sustained by the striking casting will be transmitted from the same to draft sills 9, to plates 1 and to tie plates 12, which transfer the same to the bolster 4. It will be seen that draft lugs 7 are provided with considerable bearing aree. between the follower stops 28 by embossments 22, in addition to the bearing secured by the contacting of the outer faces of projections 8 against the rebent portions ,21 of embossments 22, which rebent portions liel against the webs of dra-ft sills 9.

What I claim is:

1. In combination in a car underframe, wooden center sills, metallic plates paralleling and secured to said sillsiand draft lugs` provided with projections, said plates having embossments containing companion incisions and bein depressed between the latter to form soc ets into which said draft lug pro- 2. In combination in a car undertrame, wooden center sills, metallic plates paralleling and secured to said sills, draft sills connected to said center sills and plates and raft lugs provided withiprojections, said plates normally lying against the draft sills andy having bearing bosses for said draft lugs spaced from the draft sills and depressed at certain localities to engage said draft sills and to form sockets for said draft lug projections.

3. In combination in a car underframe, Wooden center sills, opposingly spaced metallic plates paralleling said sills, secured to the inner faces thereof and depending below the bottoms of said sills, the depending portions of said plates being more widely spaced than the sill-secured portions thereof, stiffened. draft sills reinforcing said plates, and draft lugs secured to the depending plate portions, said lugs and plates having opposing and interlocking bearing bosses inwardly spaced from the draft sills.

4. In combination in a c ar underframe, a draft sill, a metallic plate secured thereto and provided with a`n embossment spaced therefrom, there being spaced slits in said embossment, the metal between adjacent slits being pressed out of alinement with the body portion of said embossnient, and a draft lug having a projection adapted to bear against the slit-formed edges of the embossment.

5. In combination in a car underfraine a 4draft sill, a metallic plate secured thereto and provided with an embossment spaced therefrom, said embossment containing parallel slits, the metal between which is deflected to lie against said sill, a draft lug having a projection extending into the space between the embossment edges formed by said slits and engaging said deflected metal and a fastening device connecting said draft lug projection, deflected metal portion and draft sill.

6. In combination in a car underframe, draft sills, metallic plates positioned against the inner faces of said sills, each plate having embossments spaced from its associated draft sill,- said. einbossments containing parallel slits, the metal between which is delected toward the adjacent draft sill to form sockets, draft lugs having projections entering said sockets, the end portions of said draft lugs-being spaced from said plates, fillers between draft lug end portions and plates, and means securing said draft sills, metallic plates, 'fillers and draft lugs together.

7. In combination in a car underframe, yan end sill, abolster, wooden center sills, metallic plates paralleling said center sills, se-

' cured thereto and to said end sill and extending beyond the rear of said bolster and below said center sills, draft sills reinforcing the plate portions below said center sills, the lower body portions of said plates lying bei ng depressed n sockets into which said draft lug projections be'spaced from the draft against said draft sills and havilig inwardly bulged embossments each provided with incisions, the metal between which is rebent into alinement with said body portions, draft lugs having projections fitting into the spaces formed by the rebent embossment portions and the incision edges of the metal of said embossments, and means securing said draft lugs, plates and draft sills together.

8. In combination in a car underfranie, a bolsterfrwooden -celter sills, opposingly spaced metallic plates having upper portions secured to said center sills and extending rearwardly of the bolster and lower portions depending below said sills, means foiI transmitting stresses in said plates to opposite sides of said bolster, said plates having body portions lying against said draft sills and inwardly bulged embossments each provided with slits and portions between said slits rebent to engage the draft sills, and suitably retained; draft lugs having projections extending between the edges ofl the embossments formed by the slits and contacting with said rebent ernbossment portions.

9. In combination'in a car underframe, a bolster, wooden center sills, metallic plates extending with said sills,y secured thereto and depending therebelow, draft sills and draft lugs secured to the depending portions of said plates, a striking casting connected to said draft sills, said plates having embossments provided with slits, the metal between said slits being` rebent to form sockets, said draft lugs having projections adapted to be seated in said sockets and to enga e said rebent embossment meta-l and the eges of the embossment formed by said slits, and a member abutting said'bolster and rigidly connected to said draft sills.

10. As an article of manufacture, a draft appliance constructed to be used in cars having center sills, said article comprisin metallic plates adapted to parallel and e secured to the sills and draft lugs provided with projections, plates having embossments containing) companion incisions and etween the latter to form extend.

11. As anl article of manufacture,a draft appliance constructed'to be used in cars having center'y and draft sills, said article comprising metallic plates adapted to parallel and be/secured to the center and draft sills and draft lugs provided with projections,

said plates having body portions adapted to lie against the draft sills and alsohaving bearing bosses for said draft lugs sills and depressed at certain locations to engage the draft sills and to form socketsfor said draft lug projections.

12. As an article of manufacture, a draft appliance constructed for use in cars havingl adapted to center sills, said article comprising opposingly spaced metallic plates adapted to parallel and be secured to sides of the cent-er sills and to depend below said sills, the depending portions of said plates being spaced to a different degree than the sill-secured portions thereof, stifened draft sills secured to and reinforcing said plates, and draft lugs also secured to the depending plate portions, said lugs and plates having opposing and interlocking bearing bosses inwardly spaced from the draft sills.

13. As an article of manufacture, a draft arm constructed to be used in a car having a center sill, said article comprising a draft sill ada ted to be attached tonthc center sill, a meta lic plate secured to tle draft sill and provided with an einbossment spaced therefrom, there being spaced slits in said emhossment, the metal between adjacent slits being pressed out of alinefnent 4with the draft lug having a projec body portion of said ein asslnent, and a tion adapted t9 bear against the slit-formed edges of the embossment. A

14. As an article of manufacture, a draft appliance constructed for use in a car having spaced central sills, said article comprising draft sills ada ted to be secured to the central sills, meta lic plates secured to the draft sills and each provided with embossinents spaced from its associated draft sill, each einhnssment containing parallel slits, the metal between which is deflected to lie against the adjacent draft sill, draft lugs rovided with projections extending into t e spaces between the einbossiucnt edges formed by said slits and engaging said deliected metal, and fastening devices connecting said draft lug projections, deiiected. metal portions and draft sills.

15. As an article of manufacture, a draft appliance constructed for use in a car having center sills, said article comprising draft sills adapted to he secured to said center sills, metallic plates adapted to be positioned and to he secured thereto, each plate having embossments spaced from its associated draft sill, said einhossments containing par` allel slits, the metal between which is deflected toward. the adjacent draft sill to form sockets, draft lugs having projections entering said sockets, the end portions of said draft lugs being spaced from said plates, fillers between the draft lug end portions and plates,` and means secnrin said draft sills, metallic plates, fillers an draft lugs together.

against the inner faces of said center sills.

In witness whereof I have hereunto set 50 my hand in the presence of two witnesses.

OSCAR HOCHBERG.

Witnesses :A

BLASDEL SHAPLEIGH, JOHN M. RoHLFiNo. 

